It looks like that's the original version of the study- here's a link to the latest research: http://environment.yale.edu/climate-communication/article/Climate-Beliefs-April-2013/. I was looking through the 2012 version of the study, and it looked like the number of "Concerned" people actually declined since 2009. I feel like I'm off the chart on their scale..."Alarmed" doesn't quite cover it. "Completely Freaked Out and Ready for Immediate Action," maybe.